Plaster-bandage-rolling machine.



PATENTED SEPT. 27, 1904.

B. GKLEAVITT. PLASTBR BANDAGE ROLLING MACHINE.

APPLICATION FILED APR. 23. 1904.

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UNITED STATES Patented September 27, 1904.

BYRON O. LEAVITT, OF DENVER, COLORADO.

PLASTER-BANDAGE-ROLLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 770,912, date].September 27, 1904.

Application filed April 23, 1904.

To all whom it may concern/.-

Be it known that I, BYRON O. LEAVITT, a citizen of the United States,and a resident of the city and county of Denver and State of Coldrado,have invented new and useful Improvements in Plaster-Bandage-RollingMachines, of which the following is a specification.

My invention relates to machines for roll? ing plaster bandages forsurgical use, and has for its obj ect to provide an improved machine ofthis class.

Heretofore, so far as I am aware, machines for rolling plaster-of-parisbandages have comprised a table over which was arranged a hopper open atits lower end for holding the plaster-of-paris to be spread onto thebandage strip and a rotatable arbor near one end of the table fordrawing the bandage-strip over the table and under the hopper, so as tocoat the strip with plaster and wind it into a roll the lower portion ofthe body of plaster with in the hopper would cake and clog against theside thereof, and as a result the plaster would not be distributedevenly upon the bandage-strip.

My invention has for its object to obviate the disadvantage above noted,as well as to otherwise improve the construction of machines for rollingplaster bandages.

My improved bandage-rolling machine comprises a frame, preferably in theform of a boX, a table fastened to said frame, an arbor journaled onsaid frame at one end of the table, means to rotate the arbor, a hoppersupported by the frame above the table, whose outlet is preferablycontrolled by a valve or the like, and a scraper above and extendingtransversely of the table between the hopper and the arbor for levelingthe plaster and controlling the amount thereof applied to the bandage.In the best form of my invention Serial No. 204,507. (No model.)

the scraper is a brush pivotally mounted on the frame, and means isprovided for adjustably holding the brush in position, so that itsposition with relation to the table can be changed at will to controlthe amount of plaster applied to the bandage-strip.

Another feature of my invention in its best form is that the arbor isremovable and made with a longitudinal slot open at one end to receivethe end of the bandage-strip, so that when the arbor is turned the stripwill be wound thereon, and a finished roll can be removed from the arborwith ease by sliding the roll off one end thereof, the inner end of theroll, which is in the slot, passing out of the open end of the latter.

i Other features of my invention are herein after pointed out.

In the accompanying drawings, Figure 1 is a plan view of my improvedplaster-bandagerolling machine. Fig. 2 is a section on line 2 2 ofFig. 1. Fig' 3 is a detail hereinafter described. 7

Having reference to the drawings, A represents a table pivoted at oneend on a rod a,

mounted at its ends in the sides of a boX shaped frame B. At its otherend table A carries a rod a, mounted to slide endwise in lugs a providedupon the under side of table A. One side of the box-shaped frame B ismade with a hole a adapted to receive one end of the rod (0' and by itsengagement therewith to support the table A in a horizontal position. Atits other end the rod a projects through a slot (0 in the opposite sideof the box-shaped frame B, and upon the outside of the rod (0 is ahandle-a, by means of which rod (0 may be moved by hand endwise toengage or disengage it from the hole a for the purpose hereinafter setforth.

Within the box-shaped frame B and at the bottom thereof is a movabletray O,into which falls whatever plaster drops from the bandagestrip Dduring the plastering operation. One end of strip D is carried upwardlyover the table A and fastened to a rotatable arbor E, said end beinginserted in one of a pair of slots 6, provided in the arbor E.

Arbor E is herein shown as made from a partially-split tube open at oneend and provided with a handle a at its other end, the slots of thesplit beginning at the open end of the tube and terminating short of theother end. I

Mounted on the box-shaped frame B is a spindle e journaled at its outerend in a bracket 6 fast to frame B, and at its inner end in the frame B.This spindle e is provided with a flange a between bracket 6 and frameB, which holds said spindle against endwise movement, but permits it tobe rotated by means of a crank a integral with.

the spindle. The inner end of spindle e is chambered, as shown in Fig.3, to receive the slotted open end of the arbor E, the slots 6 of saidarbor engaging a pin 6, mounted crosswise in spindle 6 Above table A isa hopper F, supported by lugs f upon the inside of the box-shaped frameB. Said hopper at its lower discharge end is provided with a slide orvalve f, by operating which the plaster within the hopper F can bedischarged onto that part of the strip D upon the table A in smallquantities and as required.

Between hopper F and arbor E is arranged a scraper G, herein shown as abrush with resilient bristles and as pivotally mounted upon a rod g,supported at its ends by the box-shaped frame B. The brush G is madewith a spring-arm g, having a laterally-projecting point at its outerend-adapted to engage the adjacent side of the box-shaped frame B and tothereby hold brush G at any desired angle with relation to table A. Thusby adjusting the bristles of brush Gr toward or from the table A theamount of plaster applied to the strip of the roll D can be regulated.The resilient bristles of brush G act to penetrate and'break up anylumps or cakes that tend to pass thereunder and to lay the plasterevenly upon the strip D as it is drawn under said brush by the rotationof arbor E.

The hopper F is removable from its supports f, and when the machine, isnot in use it can be placed inside the box-shaped frame B, and thelatter can be closed by a hinged panel &, forming part of a cover 6 ofbox B. In order to facilitate placing the end of strip D in position,one end of the box-shaped frame B is made with a hinged panel 6, byopening which access may be had to the interior of the box.

The tray C collects whatever plaster may fall from the strip D while itis being plastered, and its contents can be restored to hopper F bywithdrawing tray C and emptying it into said hopper.

The purpose of having the table A pivotally supported and arranged to betilted is to facilitate the admission of the end of the strip and sothat after the plastering operation whatever plaster. remains thereoncan be dumped into the tray with ease and convenience.

The cover 6 is made with an opening or window Z), in which is mounted apane of glass or the like P, so that the interior of the box is visiblefrom the outside. The panel 5, hinged to cover 6 is of such size thatwhen it is opened and hopper F is placed in position the latter closesthe opening formerly closed by the panel 6 and dust arising fromdisturbance of the plaster within the boxis confined thereinthat is, boxB is closed when in use by the hopper F and when not in use by panel Z2.

Mounted in panel 6 so as to slide endwise therein is a rod 6 booked atits inner end to detachably engage a tongue provided on slide f. At itsouter end rod 6 is formed with a handle, so that when its inner end isin engagement with slide f the latter can be operated throughmanipulation of rod 6 without opening the box.

What I claim is 1. A bandage-rolling machine comprising a frame; a tablefastened to said frame; an endwise-removable arbor journaled on saidframe at one end of the table and made with a slot to receive the end ofa bandage, said slot being open at one end to permit the arbor to shedthe bandage-roll when said arbor is removed; means to rotate the arbor,a hopper supported by said frame above the table and arranged todischarge onto the latter, and a scraper above the table and. extendingtransversely of the latter for leveling the plaster and controlling theamount thereof applied to the bandage.

2. 'A bandage-rolling machine comprising a frame; a table pivotallyfastened to said frame;

means to hold said table in normal position with provision for tiltingit; an arbor journaled on said frame at one end of the table; means torotate the arbor; a hopper supported by said frame above the table andarranged to discharge onto the latter, anda scraper above the table andextending transversely of the latter for leveling the plaster andcontrolling the amount thereof applied to the bandage.

3. A bandage-rolling machine comprising a box-shaped frame; a movabletable; fastened within said frame; means for holding the movable tablein position with rovision for tilting the-table to discharge the plastersupported thereby into the lower part of the frame; a

removable arbor journaled on said frame and extending across theinterior of the latter at one end of the table; means to rotatethearbor; a hopper supported by said frame above the table and arrangedto discharge onto the latter; a valve for controlling the outlet of thehopper; a pivoted brush arranged above the table between the hopper andthe arbor for leveling the plaster and controlling the amount thereofapplied to the bandage, and means for fixing the brush in differentangular positions relatively to the table to vary the amount of plasterapplied to the bandage.

4. Abandage-rolling machine comprising a box-shaped frame; amovabletable fastened within said frame; means for holding the movabletable in position with provision for tilting said table at will; aremovable arbor journaled on said frame and extending across the latterat one end of the table; means to rotate the arbor; a hopper supportedby said frame above the table and arranged to discharge onto the latter;a valve controlling the outlet of the hopper; a pivoted brush arrangedabove and across one end of the table between the hopper and the arborfor leveling the plaster and controlling the amount thereof applied tothe bandage; means for fixing the brush in different angular positionsrelatively to the table to vary the amount of plaster applied to thebandage, and a removable tray mounted within the lower portion of saidframe.

5. A bandage-rolling machine comprising a box-shaped frame; a tablefastened within said frame; a hopper above the table and removablysupported by said frame; an arbor journaled on said frame at one end ofthe table; means to rotate the arbor a scraper supported above the tableand extending transversely of the latter between the hopper and thearbor for leveling the plaster and controlling the amount thereofapplied to the bandage, and a cover for the box-shaped frame made with amovable panel to close the opening occupied by the hopper when thelatter is removed.

6. A bandage-rolling machine comprising a frame; a table fastened tosaid frame; a hopper above the table and supported by said frame; anarbor journaled on said frame at one end of the table; means to rotatethe arbor; a scraper supported above the table and extendingtransversely of the latter between the hopper and the arbor for levelingthe plaster and controlling the amount thereof applied to the bandage,and a cover for the boxshaped frame made with a window closed by atransparent pane.

7 A bandage-rolling machine comprising a frame; a table fastened to saidframe; a hopper above the table and supported by said frame; a slide forcontrolling the outlet of the hopper; an arbor journaled on said frameat one end of the table; means to rotate the arbor; a scraper supportedabove the table and extending transversely of the latter between thehopper and the arbor for leveling the plaster and controlling the amountthereof applied to the bandage; a cover for closing the top of thebox-shaped frame and an operating member for the slide of the hopper,said member being movably mounted on said. frame.

Signed by me at Denver, Colorado, this 12th day of April, A. D. 1904.

BYRON C. LEAVITT.

Witnesses:

WILLIAM V. HODGES, D. EDGAR WILsoN.

